Sliuiies on inariiio Oslracods 



(i1f) 



and fine distally pointing spines, about the same as are shown in pi. IX, fig. 7 in G. W. MOller's 

 work, 1906 a; this row of spines is sometimes divided into two. The d-bristle has at the eorre 

 spending place a sparse row of similar spines. None of these three bristles have pad-like form- 

 ations. The a-bristle is about as long as or somewhat longer than the total length of tlie four 

 distal joints; it has no accessory saccule. The c-bristle is quite short, only about as long as the 

 distal height of the second joint. The c-bristle is more or less straight, the d-bristle is in most 

 cases not decidedly rolled uj). All the joints are quite bare. 



Second antenna: — Protopodite: In specimens with shells 1,4 — 1,5 mm. 

 long this attained a length of about 0,75 mm. E x o p o d i t e: The proportion between the 

 length of this branch and that of the protopodite is about 14 : 30. The proportion between 

 the length of tin' tiist joint and the total length of the eight following joints is about 2:1. The 



I"i.i(. CX\'I. — Conchoecia oblonga [C. Ci.AUs). — 1. Shell seen from Iho side, (J; 56 X. 2. Sholl soeii from below, ^i 

 'i9 X. :!. Poslero-dorsal conu'i' of tlii^ stu^ll seen from inside, cJ; I'*'* X. 4. Margin of tlie left valve just below tlie 

 ineisur seen from inside, ,J: 56" X. 5. Postero-dorsal eorncr of the sliell seen from inside. $; 133 X. 6. Chispini;- 

 appendage of the endopodite of the right second antenna, cJ; '"OO X. 7. Proximal toothdist of the right mandible seen 

 from inside, ?; 1167 X. 8. Distal part of the penis, seen from outside; 833 X. 9. The fourth to the seventh claws 

 of tlie furca. ,J; 420 X. 10. Distal part of the rod-shaped organ, cj; 187 X. II. Distal part of this organ -(- a part of 

 Ihe first antenna, $: IH" X. (All the fisrurcs are drawn from specimens from station 20b.) 



